Through theoretical analysis of rheological properties of frozen soil, the logarithmic creep equation of frozen clay is established under complex stress state. 通过对冻土的流变特性进行理论分析,建立了冻黏土在复杂应力状态下的对数型蠕变方程。
Empirical transient rheological equations are then obtained by ways of curves fitting. The relation between parameters of the empirical equation and morphology of primary α-phases of semisolid alloy is also gained by means of regression analysis. 对试验结果进行回归分析,得出表观粘度与时间的瞬态流变经验方程,以及方程参数与半固态合金初生α相形态和切应变速率之间的关系。
An equation between the peak rheological stress of this alloy for warm deforming process and deformation temperature and an equation between mechanical properties of workpiece after low deformed heat treatment ( quenching) and deformation parameters have been established. 建立了该合金温变形时流变应力峰值与变形温度间的函数关系及低温形变热处理(淬火)后工件力学性能与变形参数间的关系式.结果表明,该材料具有良好的温成形性能;
Study on Chemorheology of Phenolic Resins for RTM Processing A rheological model based on the dual-Arrhenius equation is established and used to simulate the rheological behavior of the materials. RTM工艺用酚醛树脂体系化学流变行为研究研究表明,双阿累尼乌斯模型能够准确描述聚硫醇固化的环氧树脂在较低粘度范围内的化学流变行为。
Then, the mathematical models of foam flowing through different positions ( drilling string, bit and annulus) are set up based on the mass conservative equation, momentum conservative equation and rheological equation and an iterative method is used to solve for the mathematical model. 然后,利用质量守恒与动量守恒方程以及流变方程建立了泡沫流经钻柱内、钻头、环空不同位置的数学模型,采用数值迭代方法对数学模型进行了求解。
In the present analysis, the rheological properties of gear oils and the transient effect of gear operating are incorporated into Reynolds equation; 本文将齿轮油的流变特性和齿轮传动的瞬态效应偶合到雷诺方程中,在三组流变模型下,推导了齿轮传动的瞬态拟雷诺方程;
Cross fluids obeyed the cross rheological equation. The cross rheological equation is complicated to get the solution for cross fluid pipe flow and annular space flow. Cross流变方程比较复杂,用该方程难以求解Cross流体在圆管和环空内流动流场。
On the basis of experiment test, the rheological property of fusible pattern material has been systematically analyzed. At the same time, the rheological property constitution equation of the fusible pattern material is established. 在实验测试的基础上,对模料的流变性进行研究,建立描述模料流变性的本构方程。
Firstly, through deeply study of the rheological theory and the typical rheological curve of the soft clay, an improved nonlinear elastic-viscous elastic-viscous plastic model is presented and the corresponding constitutional equation has been worked out too. 本文在对已有岩土介质流变理论以及典型软土蠕变曲线进行深入分析和讨论的基础上,提出了改进的西原非线性蠕变模型,并推导出相应的本构方程。
Study on a New Rheological Equation of State for Blood 一种新的血液本构方程理论和实验探讨
Based on rheological theory of polymer processing, the parameters of flow channel are determined and optimized using calculation equation of single flow channel of coathanger type die. Then coathanger type wide-web film die is designed for HDPE flat film extrusion. 根据聚合物加工流变学理论,采用衣架型单流道模头计算公式确定了模头的流道参数并加以优化,然后设计出适用于HDPE平膜的衣架型宽幅模模头尺寸。
Productivity prediction model of power-law fluid in the reservoir before and after pollution had been deduced based on rheological behavior equation of the power-law fluid. 基于幂律流体的流变特性方程,推导了幂律流体储层污染前后的垂直井的产能预测模型;
Rheological model and rheological equation of sullage soft soil under dynamic loading 动载作用下淤泥质软土流变模型与流变方程
Rheological Model and Equation of Viscoelastic-Plasticity of Paste-Like Backfill Pulp 似膏体粘弹塑性流变模型与流变方程研究
Researched mechanical rheological properties of tomato,, researched creep testing equipment, arranging creep property testing system, analyzed stress distribution on the contact area and tomato crush equation by using Hertz theory; 研究了番茄的力学流变学特性:研制了蠕变试验装置,配置了蠕变特性测量系统;应用赫兹接触理论导出了番茄挤压方程、接触处上的应力分布及番茄果实的压缩弹性模量;
The rheological property of polymer solution is described by upper-convected Maxwell constitutive equation, and the flow law of viscoelastic polymer solution in porous reservoir model& bellows model is studied by numerical calculation. 采用上随体Maxwell本构方程描述聚合物溶液的流变性,用数值方法研究了黏弹性聚合物溶液在油藏孔隙模型&波纹管模型中的流动。
Therefore, the primary objective of this thesis is using the knowledge of rheology to study the characteristic, evaluation method, and rheological constitute equation of MR fluid. 本文利用流变学的知识,重点研究了磁流变液触变性特征及其评价方法和流变学本构方程。
For the rheological character of MIM feedstock melt, the synthesis rheological equation is the best choice to describe the filling process, which have been fit and amendment with viscosity data. 针对金属粉末注射成形喂料熔体的流变特性选择综合流变本构方程进行描述,并通过粘度实验数据进行了拟合修正。